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using System; |
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using System.Collections.Generic; |
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using System.IO; |
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|
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namespace Oni.Objects |
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{ |
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internal class ObjectLoadContext |
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{ |
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private readonly Func<TemplateTag, string, ObjectLoadContext, InstanceDescriptor> getDescriptor; |
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private readonly TextWriter info; |
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private readonly Dictionary<string, ObjectClass> classCache; |
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private string basePath; |
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private string filePath; |
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|
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public ObjectLoadContext(Func<TemplateTag, string, ObjectLoadContext, InstanceDescriptor> getDescriptor, TextWriter info) |
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{ |
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this.getDescriptor = getDescriptor; |
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this.info = info; |
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this.classCache = new Dictionary<string, ObjectClass>(StringComparer.Ordinal); |
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} |
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|
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public T GetClass<T>(TemplateTag tag, string name, Func<InstanceDescriptor, T> reader) |
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where T : ObjectClass, new() |
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{ |
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ObjectClass klass; |
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|
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string fullName = tag.ToString() + name; |
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|
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if (!classCache.TryGetValue(fullName, out klass)) |
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{ |
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var descriptor = getDescriptor(tag, name, this); |
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|
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if (descriptor != null) |
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{ |
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info.WriteLine("Using {0} object class '{1}' from '{2}'", tag, descriptor.Name, descriptor.FilePath); |
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|
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klass = reader(descriptor); |
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klass.Name = descriptor.Name; |
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} |
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|
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classCache.Add(fullName, klass); |
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} |
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|
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return (T)klass; |
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} |
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|
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public string BasePath |
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{ |
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get { return basePath; } |
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set { basePath = value; } |
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} |
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|
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public string FilePath |
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{ |
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get { return filePath; } |
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set { filePath = value; } |
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} |
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} |
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} |
